Type-writer desk



(No Model.) 2 Sheets-Sheet 1.

M. J. HAPGAR. TYPE WRITER DESK. No. 600,580. I Patent-ed Mar. 15,1898.-

(No Model.) 2 Sheets-Sheet '2,

M. J. HAFGAR. TYPE WRITER DESK. No. 600,580. Patented Mar. 15, 1898.

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NiTnD STATES PATENT Orrion.

MAGNUS J. HAF-GAR, OF CHICAGO, ILLINOIS.

TYPE-WRITER DESK.

SPECIFICATION forming part of Letters Patent N 0. 600,580, dated March 15, 189-8. Application filed May 27, 1897. Serial No. 638,382. (No model.)

To aZZ whom it may concern:

Be it known that I, MAGNUS J. HAFGAR, a citizen of the United States, residing at Ohicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Type-Writer Desks; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to that class of typewriter desks in which the type -writer is mounted upon a movable table adapted to swing backwardly and downwardly for the purpose of closing the desk, a section of the top of the desk being openableand being so connected with the type-writer table that the two parts move together.

The objects of the present invention are to secure an easy action and a firm support for the table when the desk is open, to provide for the movement of the openable portion of desk-top without weakening any part of the 'fiXed portion thereof, and to provide means for entirely closing in the cabinet, so as to protect the type-writer from dust when not in use. These several objects are obtained by the construction hereinafter fully described, and which is illustrated in the accompanying drawings, in which Figure 1 is a front elevation of the desk open. Fig. 2 is a sectional view on the line 2 2 of Fig. 1. Fig. 3 is a similar section, the desk being closed. Fig. 4: is an elevation of the side of the movable portion of the desk-top. Fig. 5 is a detail plan of the desk-top, includinga portion of the movable part, and being partly in section. Fig. 6 is a sectional detail of the movable part of the desk. Fig. 7 is a detail elevation of the lever mechanism for supporting the movable parts of the desk; and Fig. 8 is a detail elevation of the front or lower side of the type writer table, showing an extension of the latter.

The desk A is of the same general contour as the desks of this type in ordinary use, having at one end a tier of drawers and at the other a well within which the type-writer is mounted, this well being flanked by walls F F. The type-writer well is covered by a movable section B of the desk-top, which is supported by arms D D, vertical when the desk is closed and pivoted to the walls F F by means of studs E, fixed therein, so that the. cover B may be swung backwardly and assume a vertical position.

A table 0 for carrying the type-writer assumes a horizontal position and projects forwardly from the desk when the type-Writer X (indicated in dotted lines in Fig. 2) is brought into position for use and. swings backwardly and assumes an inclined position, as shown in Fig. 3, when the desk is closed. The table 0 has a pair of downwardly and forwardly projecting arms 9, one at each side, which are pivotally connected with the lower ends of the arms D by means of the pins d, set in the latter and engaging slots g in the arms g. Each of the arms g is at its lower and forward end pivotally connected by means of a stud g with a rock-lever H, swinging upon a stud h, projecting from the wall of the desk and being forward of and lower than the pivot-pin E. Theopposite orpower end of the lever H is pivotally connected by means of a pin k with a rock-lever K, swinging upon a stud k, projecting from the wall of the desk, the opposite or power end of this lever being pivotally connected with the arm D by means of apin d located between the pivots d and E.

When the upper ends of the arms D are swung backwardly as the desk is opened, their lower ends carry upwardly and forwardly the table 0 and rock the levers K upon their pivots, depressing their forward ends and thereby rocking the levers H and throwing the lower and forward ends of the arms 9 forwardly and upwardly. This upward movement carries up the table, so that when the desk is open the pivot-pins d are at the lower ends of the slots g, and the table 0 is supported wholly through the agency of the levers Hand K by the pins 70. The parts are so proportioned that when the desk is open the levers K are substantially vertical, so that the upward pressure upon the pivotpins W has no tendency to rock them, and consequently the table 0 is stable. Longitudinal slots 02, g, h, and it in the arms and levers D, g, H, and K, to receive, respectively, the pins E, d, and d admit of the flexure of the several joints, which would otherwise be cramped, as the pivot-pins of the different members approach and recede from each other.

The cover 13 is in sliding engagement with its support and is mounted upon a platform I), to which the arms D are directly connected. The means of attaching these two parts is plainly shown in Figs. 4:, 5, and 6, consisting of a number of lugs b, attached to the cover B and being turned down under lateral flanges 19 along the side edges of the platform I). By this means the cover 13 is free to reciprocate forwardly and backwardly and may be drawn forwardly when the desk is opened and closed, so that its rearward edge will not interfere with the forward edge of that portion a of the fixed part of the top of the desk lying back of the well, and consequently the front of the portion a need not be broughtto a knife-edge, as is common in desks of this character. When the desk is closed, the cover is slid back, so as to abut against the portion a of the desktop. In order to guide and steady the cover as it swings, the platform I) has along each of its side edges a projecting flange M, which engages a transverse slot acrossthe endof a rotatable pivot m, set in the wall F or Fand located near the back of the well.

An extensible leaf 0 is secured to the nnder or front face of the table 0 and is in sliding engagement therewith, so that it may be projected forwardly and upwardly to close the space between the upper edge of the table and the cover B when the desk is closed, and thereby exclude dust from the typewriter when the latter is not in use. Any suitable means may be employed for attaching the leaf 0 to the table 0. As shown, it is secured thereto by means of arms 0, sliding through loops P, secured to the table 0.

WVhile the relation of the pivot-pins of the various members is such that they prevent the downward movement of the cover B beyond the position shown in Fig. 2, it is advisable, for the purpose of relieving the pivots from strain and wear, to fix to the walls F F stop-blocks Q for supporting the cover.

It will be seen that the final movement of the rearward or lower end of the cover 13 in the act of opening the desk is forward and the initial movement of the same part inclosin g the desk is backward. I place stop-blocks R, fixed to the walls F F, so as to cross the lower portion of the path of the inward or rearward edge of the sliding portion of the cover when the latter is in its relatively rearward or inward position, so that in opening.

and closing the desk it is necessary that this part be drawn forwardly in order that it may pass the blocks R. It will be seen that when the desk is open and the sliding part of the cover is allowed to descend relatively as to the other portions it will fall in front of the blocks B. This arrangement prevents the accidental closing of the desk by backward pressure upon the table 0.

I claim as my invention 1. The combination in a desk with a depressible table, of a carrying rock-lever pivoted to the desk so as to move in vertical plane, and having one of its ends pivotally connected with the table, an actuating rocklever pivoted to the desk so as to move in vertical plane and having one of its ends pivotally connected with the end of the carryinglever remote from the end thereof connected with the table, the parts being so disposed that the actuating-lever assumes a substantially vertical position when the table is in its elevated position, and means for controlling the actuating-lever.

2. The combination in a desk with a depressible table, of a carrying rock-lever pivoted to the desk so as to move in vertical plane, and having one of its ends pivotally connected with the table, an actuating rocklever pivoted to the desk so as to move in vertical plane and having one of its ends pivotally connected with the end of the carrying-lever remote from the end thereof connected with the table, the parts being so disposed that the actuating-lever assumes a substantially vertical position when the table is in its elevated position, a tilting cover, and a swinging arm for carrying the cover and being pivotally connected with the actuatinglever, whereby the movement of the table may be accomplished by moving the cover.

3. The combination in a desk with a depressible table, of a carrying rock-lever pivoted to the desk so as to move in vertical plane, and having one of its ends pivotally connected with the table, an actuating rocklever pivoted to the desk so as to move in vertical plane and having one of its ends pivotally connected with the end of the carryinglever remote from the end thereof connected with the table, the parts being so disposed that the actuating-lever assumes a substantially vertical position when the table is in its elevated position, a tilting cover, and a swinging arm for carrying the cover and being pivotally connected with the actuating-lever and the table, whereby the movement of the table may be accomplished by moving the cover.

4. The combination with a desk and the table, 0, having the arms, g, of rock-levers, H, pivoted to the desk and to the arms, g, rock-levers, K, pivoted to the desk and to the ends of the levers, H, remote from their connection with the arms, 9, the cover, B, having the arms, D, pivotally secured to the desk, and pivotal connection between the lower ends of the arms, I), and the levers, K.

5. The combination with a desk, a swinging cover having pendent arms pivoted to the desk, and a tilting table having pendent arms, of a pair of rock-levers pivoted to the desk and moving in a vertical plane, and being from the cover, and pivot-pins fixed in the desk and engaging the slots of the arms.

7. The combination with a desk having a well, of a cover for the well, rotatable pivots for the cover and insliding engagement therewith, slotted arms projecting downwardly from the cover, pivot-pins fixed in the desk and engaging the slots of the arms, a typewriter table within the well, arms pendent from the table, pivoted supports for the arms, and pivotal connection between the arms of the cover and the arms of the table, and the pivoted supports of the table.

8. The combination with a desk having a well, of a cover for the well, rotatable pivots for the cover and in sliding engagement therewith, slotted arms projecting downwardly from the cover, pivot-pins fixed in the desk and engaging the slots of the arms, a typewriter table within the well, slotted arms pendent from the table, pivot-pins in the arms of the cover engaging the slots of the tablearms, a rock-lever pivoted to the desk, pivotal connection between the rock-lever and the table-arms, a second rock-lever pivoted to the desk and in sliding pivotal engagement at one end with the first-mentioned rock-lever and at the other end with the cover-arms.

9. The combination with a desk having a well, of a cover for the well and being pivoted to the desk so as to move downwardly and backwardly, such cover having an upper slid- 7 ing plate adapted to be flush with the desktop when closed, and to abut against the fixed part of the desk-top at the back of the well.

10. The combination with a desk having a well, a cover for the well, rotatable pivots secured to the desk and in sliding engagement with the cover, slotted arms pendent from the cover, pivots set in the desk and engaging the slots of the arms, a member forming a part of the cover and having a forward and backward reciprocatory movement upon the other parts thereof, of a stop fixed to the desk and crossing the lower portion of the path of such reciprocating member when in its relatively inward position.

11. The combination with a desk having a well, of a swinging cover for the well, a swinging table within the well and adapted to move backwardly and downwardly, and an extensible leaf secured to the table for closing the space between the table and cover when the well is closed.

In testimony whereof I affix my signature in presence of two witnesses.

MAGNUS J. HAFGAR.

NVitnesses: I

LOUIS' K. GILLsoN, OLIVER L. PLUMTREE. 

